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2020 ( evidence record) They find key similarities from pieces from the same species in chronological (usually thousands of years apart) order an then look at what has changed. BTW im not a scientist, just throwing it out there
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoThe biochemical pathways that exist between organisms that also have close physiological homology strongly suggest common ancestry. Even organisms that look nothing like each other have very similar biochemical pathways. The amoeba and you, both being eukaryote, have mitochondria that use the biochemical pathway of oxidative phosphorilation.
Traditionally, biologists looked at visible characteristics to try to work out the relationships between organisms. This isn't always very reliable, because often two species will develop similar adaptations for the same reason. For example, dolphins/whales have most of the same adaptations as fish for living in water, even though their ancestors lost the ability to live in water. Koalas are often called koala bears, even though they're not bears. And so on. But I think that this isn't much of a problem if you look at DNA/protein. For example, the genes for fins in whales would be different from the fin genes in fish (unless those genes have been present but inactive in the land-dwelling ancestors of whales, which is possible).
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How do scientists determine the evolutionary relationship among species?
They use a taxonomic map to help classify organisms. The placement of organisms on this was originally based on similarities between species. Today we are able to look at their actual genes, which has resulted in a better understanding of evolutionary relationships - or the lack of them- and has resulted in some re-classification.
How do scientists use chromosome comparisons to determine the evolutionary relationships among organisms?
Organisms that are closely related usually have very similar chromosomes numbers and a large degree of homology (similarity) beween their chromosomes (but the chromosomes are different enough to maintain genetic isolation).
Biochemical analysts use similarities in what as evidence for evolutionary relationships?
Biochemical analysis uses similarities in DNA, amino acid sequences, as evidence for evolutionary relationships
How do scientist use cladograms?
To show evolutionary relationships based on traits
How are evolutionary relationships determined?
(False )They use a taxonomic maping to help classify organisms.Yes
Scientists determine evolutionary relationships by looking at breeding behavior geological distribution and structural similarities between organisms true or false?
It is true that scientists determine evolutionary relationships by looking at breeding behavior, geological distribution, and structural similarities between organisms. Scientists can use other criteria to determine evolutionary relationships.
Is a type of evidence used by scientists to determine evolutionary relationships?
The evidence do scientist use to determine evolutionary relationships by scientist have combined the evidence from DNA, protein structure, fossils, early development, and body structure to determine the evolutionary relationship amoung species.
How do scientists use scientists use structural similarities to determine the evolutionary relationship?
They see similarities with structures between modern day organisms and older organisms.
How do you use breeding behavior to determine evolutionary relationships?
by comparing them with each other to see wich ones have common ancestors
How do scientists determine the evolutionary relationship among species?
They use a taxonomic map to help classify organisms. The placement of organisms on this was originally based on similarities between species. Today we are able to look at their actual genes, which has resulted in a better understanding of evolutionary relationships - or the lack of them- and has resulted in some re-classification.
What evidence do scientists use to make phylogenetic trees?
Phylogenetic trees represent hypotheses about the evolutionary relationships among a group of organisms. A phylogenetic tree may be built using morphological (body shape), biochemical, behavioral, or molecular features of species or other groups.
How do scientists use chromosome comparisons to determine the evolutionary relationships among organisms?
Organisms that are closely related usually have very similar chromosomes numbers and a large degree of homology (similarity) beween their chromosomes (but the chromosomes are different enough to maintain genetic isolation).
Biochemical analysts use similarities in what as evidence for evolutionary relationships?
Biochemical analysis uses similarities in DNA, amino acid sequences, as evidence for evolutionary relationships
Which method do scientists use to track evolutionary changes over time?
Scientists use phylogenic comparative methods to track evolutionary changes over time.
How do scientists use comparative anatomy to study evolution?
Comparative anatomy is the investigation and comparison of the structures of different animals. Scientists use comparative anatomy to study the difference between species and how they are alike in other ways. By comparing the similarities and differences between a number of species, scientists can then construct a picture of their evolutionary relationships.
How do you use phyla in a sentence?
It will stress the evolutionary relationships between different phyla.
What do scientists use to find organisms relationships?
They use people.
